It can tell us how old they are and how and where they moved in the past.
I do not understand your question, what is the question, name what??
It is c I hope I helped out with this question!.
Answer:
Once three protons have entered the matrix space, there is enough energy in the ATP synthase complex to synthesize one ATP. In this way, the energy in the hydrogen ion gradient is used to make ATP. ... The mitochondrial hydrogen ion gradient is generated as electrons pass through three membrane complexes.
For 23., you have to find a way to measure your heart rate not increase it. search it up on google.
